Dam.



PATENTED JULY 18, 1905.

L. E. RICE.

DAM.

APPLICATION FILED MAR.25.1905.

J1 7431: zzems'ea EW/ZZ'ZI UNITED STATES Patented July 18, 190 5.

PATENT OEEicE.

LUGIUS E. RICE, OF LYNDON, ILLINOIS, ASSIGNOR OF ONE-HALF TO M. L. MORRISON, OF ROCKFORD, ILLINOIS.

DAM.

SPECIFICATION forming part of Letters Patent No. 794,813, dated July I8, 1905.

Application filed March 25, 1905. Serial No. 252.099.

To (ti/L whom, it nan/y concern:

Be it known that I, LUOIUs E. RICE, acitizen of the United States of America, residing at Lyndon, in the county of Whiteside and State of Illinois, have inven ted certain new and useful Improvements in Dams, of which the following is a specification.

My invention relates to a dam consisting of a concrete body armored with iron or steel. Its principal object is the production of a dam of great strength and durability at comparatively moderate expense.

It consists in the novel construction and arrangement of parts hereinafter described, illustrated in the accompanying drawings, and particularly pointed out in the appended claims, it being understood that various changes in the form, proportions, size, and minor details of the structure may be made Without departing from the spirit or sacrificing any of the advantages of the invention.

Referring to the accompanying drawings, which form a part of this specification, Fig ure 1 is a top plan view of a dam embodying my invention. Fig. 2 is a section at the dotted line 2 2 in Fig. 1 of parts there shown. Fig. 3 is a section at the dotted line 3 3 in Fig. 2 of parts there shown.

Like letters of reference indicate corresponding parts throughout the several views.

A represents abutments of any desired form, construction, and material, but are composed, preferably, of concrete armored with metallic plates, as shown.

B represents metal supporting-beams secured together and resting on the earth.

C is an upstream metallic armor, curved upwardly in substantially the arc of a circle, cross-sectionally, and inclined downstream.

D is a downstream metallic armor, curved downwardly in substantially the arc of a circle, cross sectionally, and inclined upstream and connected by its upper edge portion to the upper edge portion of the upstream-armor O to form the crest of the dam. The upstream and downstream armors U D are also secured by their lower edge portions to the supporting-beams B.

E is a ridge formed, preferably, of angleiron.

F represents rafters formed, preferably, of T-ironand extending from the supporting beams B to the ridge E.

Gr represents rectangular metallic plates riveted to the treads of the T-iron rafters to form the armor of the dam.

H represents, preferably, metallic uprights extending from the supporting-beams B to the inside of the apex of the armor of the dam.

The above-described framework composed of the parts E, F, and H, connecting and supporting the armor proper of the dam, is simply a preferred connecting and supporting means therefor, and I do not, therefore, wish to be understood as limiting myself to any particular means of connecting the plates G to form the armor of the dam or to any particular kind of frame for supporting such plates after they have been connected to form such armor.

I .is a concrete core filling the chamber formed by the armor C D and the earth thereunder.

The conformation of the upstream and downstream armor of my dam corresponds, cross-sectionally, to substantially the arcs of circles, a form and arrangement that insure a structure of the greatest possible known strength, durability, and economy of materials.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A concrete dam, having its upstream side curved upwardly in substantially the arc of a circle, cross-sectionally, and its downstream side curved downwardly, in substantially the arc of a circle, cross-sectionally, and armored with metallic plates.

2. A dam consisting of an upstream metallic armor curved upwardly, in substantially the arc of a circle, cross-sectionally, and inclined downstream, and a downstream metallic armor curved downwardly, in substantially the arc of a circle, cross-sectionally, and inclined upstream and connected by their upper edge portions, and a concrete core filling the chamber formed by the upstream and downstream armor and the earth thereunder.

3. In a dam, in combination, a plurality of metallic supporting-beams, an upstream metallic armor curved upwardly in substantially the arc of a circle, cross-sectionally, and inclined downstream, a downstream metallic armor curved downwardly in substantially the arc of a circle, cross-sectionally, and inclined upstream, and secured by the lower edge portions to the supporting-beams, and connected together by their upper edge portions to form the crest of the dam, metallic uprights extending from the supporting-beams to the inside of the apex of the armor, and an integral concrete core filling the chamber formed by the upstream and downstream armor and the earth thereunder.

In testimony whereofI have signed my name to this specification in the presence of two subscribing witnesses.

LUCIUS E. RICE.

Witnesses:

L. L. MORRISON, NELLIE E. ENNETT. 

